Signed/unsigned arithmetic confusion
USDD (Decentralized USD)'s assessment for RD-F-018 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Ethereum ERC-20: SafeMath-style add/sub (overflow-protected). No signed/unsigned conversion confusion in a simple ERC-20 token. TRON TVM: not applicable. Green.
Sources #
- EtherscanUsdd Stablecoin source - EtherscanUSDD Ethereum ERC-20 source - SafeMath arithmetic, no signed/unsigned confusionretrieved 2026-05-17
Methodology #
Determine whether signed-integer conversions or comparisons where unsigned was intended exist in the deployed bytecode/source.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol usdd factor RD-F-018 score green collected_at 2026-05-17 11:34:18